Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.
 - This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Lexer/escape_newline.c b/test/Lexer/escape_newline.c
index d07f045..43ba417 100644
--- a/test/Lexer/escape_newline.c
+++ b/test/Lexer/escape_newline.c
@@ -1,6 +1,6 @@
-// RUN: clang-cc -E -trigraphs %s | grep -- ' ->'
-// RUN: clang-cc -E -trigraphs %s 2>&1 | grep 'backslash and newline separated by space'
-// RUN: clang-cc -E -trigraphs %s 2>&1 | grep 'trigraph converted'
+// RUN: %clang_cc1 -E -trigraphs %s | grep -- ' ->'
+// RUN: %clang_cc1 -E -trigraphs %s 2>&1 | grep 'backslash and newline separated by space'
+// RUN: %clang_cc1 -E -trigraphs %s 2>&1 | grep 'trigraph converted'
 
 // This is an ugly way to spell a -> token.
  -??/